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C. E." MONEAL.

GRAIN SEPARATOR.

I No. 300,621. Patented June 17, 1884.

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(N0 Model.) 2 vSheeim--Sheel; 2. C. E.. MGNBAL.

GRAIN SEPARATOR.

Patented June 17, 1884.

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IINTTnn STATES PATENT @Terna CHARLES E. MCEAL, OF SILVER CREEK, NEV YORK.

GRAINwSEPARATOR.

SPECIFICATION forming part of Letters Patent No. 300,621, dated .Tune 17, 1884.

Application tiled February 18, 15184. (Xo model.)

To all whom it may concern.-

Be it known that I, CHARLES E. MONEAL, of Silver Creek, in the county of Chautauqua and State of N ew York, have invented new and useful Improvements in Grain-Separators, of which the following is a specification.

This invention relates to an improvementin that class of grain-separators which are em- In the accompanying drawings, consisting of two sheets, Figure l is a longitudinal sectional elevation of a machine provided with my improvements. Fig. 2 is aside elevation, partly in section, of one of the lower sieves on Fig. 3 is a longitudinal section, on an enlarged scale, of the tail portion of the lower sieve. Fig. 4. is a cross-section in line ma, Fig. 2. Fig. 5 is a longitudinal section, on an enlarged scale, of the upper sieves. Fig. 6 isa cross-section in lineg/y, Fig. Fig. 7 is a cross-section in line z e, Fig. 2. Fig. Sis a perspective view of one ofthe lower sieves.

Like letters of reference denote like parts in the several figures.

A represents the stationary main frame of the' machine.

Bis the upper shakingshoe, and Bthelower shaking-shoe, both operated, respectively, by rods b b', connected with eecentries on the shaft b2. y v,

C represents the ascending air-tiunk,which receives the grain escaping fromthe tail end of the upper shoe, B, and G is a similar airtrunk, which receives the grain from the lower shoe, B.

02 represents the chess-hopper connected with air-trunksCC, and CP' is the fan whereby air-currents are drawn through said trunks and the chess-hopper.

E E represent two sieves inclined in the same direction, and arranged in the upper shoe, B, at different elevations, the head of the lower sieve, E', being arranged below the tail end of the upper sieve, E.

F represents a preliminary screen arranged in the upper portion of the shoe B, whereby sticks, stones, and other coarse impurities are separated fromthe grain before it passes upon the upper sieve, E. i

f represents a tight plate arranged underneath the preliminary sieve F, to receive the grain passing through said sieve and conduct the same to the sieve L.l

f/ is a trough which is arranged below the tail end of the sieve F, and receives the coarse impurities and discharges the same on one side ofthe machine. l

e represents a tight inclined plate secured in the shoe B underneath the sieve E, so as to receive the grain which passes through the sieve E and conduct the same to the head of the sieve E.

e is a trough arranged below the tail end of the sieve E, to receive the impurities which have passed over the sieve and diseharg e same on one side of the machine.

g represents a tight inclined plate secured in the shoe B underneath the sieve E', to receive' the grain which has passed through this sieve and conduct the same to the head ofthe lower shoe, B. In passing from the upper shoe to the lower shoe, the grain falls through the air-current in the wind-trunk C, whereby it is freed from the dust, chess, and other` light impurities.

g represents a trough arranged below the tail end ofthe lower sieve, E', to receive the material which has escaped over the sieve and discharge the saineon one side of the machine. The sieves E and E are constructed of perforated metal of the proper mesh or size of perforations to permit all-the grain excepting oats to pass through the same. The oats and straw pass over the sieves, and aredischarged by the spouts e and g. By arranging the two sieves E E in different planes and discharging the oats from the upper sieve sepal rately, the lower sieve is relieved from the oats so discharged and better enabled to effect a complete separation of the remaining oats from the wheat.

IOO

H represents an endless apron or beit arranged to travel with its lower portion downwardly over the sieves E Ein such close proximity to their upper surfaces as to compel the kernels of oats to lie iiat on the sieves, thereby preventing the oats from tipping up and passing through the perforations of the sieves. The apron or belt H4 passes around a headpulley, h, a tail-pulley, 71', and intermediate guide-pulleys, 71? h, whereby the belt is 'conducted from the tail end of the upper sieve, E, downward to the head of the lower sieve, E. rIhe shafts of these pulleys are supported in bearings secured to the frame A, and the belt or apron H is driven by a belt running around a pulley secured to the shaft of the head-pulley h.

I represents the upper sieve of the lower shoe, B', and I the lower sieve, arranged in said shoe with its head below the tail of the sieve I. rilhe upper sieve7 I,is constructed of perforated metal of the proper kind to permit the small wheat and cockie to pass through Ithe sieve, while the large wheat passes over the sieve into a trough, t', from which it is discharged through tubes t" into spouts i2.

j is a tight inclinedv plate arranged below the sieve I, to receive vthe small wheat and cockie which have passed throught the sieve and conduct the same tothe head of the lower sieve, I. The latter is constructed of perforated metai having such openings that the small wheat will pass over the tail of the sieve I into a receptacle or trough, k, while the cockie will pass through the sieve and 'fail upon an inclined tightpiate, k, by which it is con ducted to spouts 7c, The small wheat passes from the receptacle 7.: upon an inclined chute, l, which receives also the large wheat from the spout i?, and conducts both to the air-trunk C', where the wheat is again subjected to the action of an air-current. The sieves I l are provided on their upper sides with longitudinal parallel strips m, to which the perforated metal is secured,and which prevents the latter from bagging or sagging between the sieve frames. In order to compel the grain to lie fiat on the sieves I I in passing over the same, these sieves are covered with aprons or curtains M, which rest on the grain between the ribs m.

O represents stationary racks or gratos arranged underneath the sieves I I in such close proximity to the under sides ot' these sieves that they will come in contact with the ends of any kernels ot' wheat which may have lodged in these sieves, and force such kernels upwardly upon the sieves, while they permit the cockie to pass through. The rack O under the sieve I is arranged so far below the sieve as to permit the small wheat to pass through the screen with the cockie, while it prevents the large wheat from passing through. The racks O consist of rectangular frames provided with cross-bars of wire, o', which extend across the under sides of the sieves I I.

The frames of' the racks 0 are supported in the side pieces of the shoe B' by cross-pieces 0;', which are secured to the under sides of thc side frames, and extend outwardly through elongated openings p inside pieces of the shoe B', and rest on metallic wear-plates p', secured in said openings. The frames O are secured to the stationary frame A by links p2 and eyebolts p, whereby the rack-frames are held stationary with reference to the longitudinal shaking motion of the shoe, but permitted to risc and fail with the shoe when the latter changes its position in the machine. times happens that the shoe settles in the frame, or that one ot its sides settles more than the other. Such a displacement ofthe shoe changes the relative positions ofthe sieves to the rack-fram es when the latter are supported on the stationary frame, which was heretofore the usual practice. By supporting the rackframes on the shoe itself the proper position of the frames to the sieves is maintained under all circumstances and the proper working of the machine insured. Each of the sieves E E and I I is fitted in grooves or ways in the respective shoes, having an opening through one of the side pieces of the shoe, so that the sieves are laterally removable from the shoe, thereby permitting the sieves to be easily exchanged for sieves having finer or coarser perforations, as may be required. The frames of the sieves I I are each constructed with a rear piece, (l, which is thinner than the front and side pieces, as represented in Fig. 8, so that these sieves can be inserted into the shoe'B over the rackframes O. In order to secure the necessary strength, the rear piece, q, is preferably con- It some- IOC structed of iron, while the front and side pieces can be constructed of wood. The screenframes are secured in the shoes by turn-but tous r. The cockie discharged from the lower sieve I is delivered into a hopper, s, from which it passes between two rollers, S S, revolving with their adjacent faces upwardly. rihe roller S is constructed. of`iron or other smooth material, and the roller S is covered with sheep-skin or other adhesive material which will retain the cockie and elevate the same.

t'is an inclined scraper-plate bearing against the roller S to remove the cockie therefrom, and TT are twohoppers or spouts, the former arranged below th e adjacent faces of the rollers, to receive the grain escaping from the saine, and the latter arranged below the scraper t, to receive the cockie. The kernels of cockie are rough and adhere to the sheep-skin,while the kernels of small wheat or other valuable grains or seeds which may still be mixed withV IIO arranged with its head below the tail of the .[5

forth.

bc separated contains no cockle,.the screens l I' may be dispensed with, and if the grain contains no oatsthe sieves E E may be dispensed with 5 but ordinarily both sets of screens willbe required to effect a complete separation.

I claim as my inventionp l. The combination, with two screens-one arranged with its head below the tail of the other and both inclined in the same directionof an endless belt or apron arranged to travel in close proximity to thel upper surfaces of both screens, substantially as set forth.

2. The combination, with two screenswone other and both inclined in the same directionof an endless belt or apron arranged to travel in close proximity to the upper surfaces of both screens, and guide-rollers whereby the i lower side of said belt or apron is guided from the tail of the :first screen to the head of the second screen, substantially as set forth.

3. The combination, with a shaking-shoe containing a screen or sieve, of a stationary rack or grate supported in said shaking-shoe underneath said sieve, substantially as set 4. The combination, with a shaking-shoe containing a screen or sieve, of a rack or grate supported in said shoe underneath the screen or sieve, and held stationary with reference to the shaking motion of the shoe, while being capable of adjusting itself vertically with the shoe, substantially as set forth. l

5. The combination, with the stationary frame A and a shaking-shoe containingasieve, 3 5 and provided with side openings7 p, of a rack or grate, O, having cross-pieces o2, projecting through the openings p, and bars p2, whereby the rack or grate is attached to the stationary frame, substantially as set forth.

6. The combination, with the two screens inclined in the same direction, and one arranged with its head below the tail ofthe other, of a tight plate whereby the material passing through the first screen is collected and con- 45 ducted to "the head of the second screen, a trough arranged below the tail of the firstscreen to collect the material escaping from the tail of the first screen, and tubes extending downwardly from the said trough through said 5o tight plate, for discharging the material from said trough, substantially as set forth.

7. The combination, with a shaking-shoe provided with an opening in its side, of a rack or gra-te supported in said shoe, and a screen 55 or sieve adapted to be inserted and removed through said opening in the side ofthe shoe, and constructed with a thin rear piece, q, to clear said .rack or grate, substantially as set forth.

In testimony whereof I have hereunto set my hand this 13th day of February, 1884.

CHARLES E. MCNEAL.

In presence of- JNo. J. BoNNnn, l F. L. BnowNn. 

